JS implementation of list and multi-select box selection with preview animation_javascript skills

<span> 
<tr> 
<td><img onclick="addType()" src="${msUrl}/images/logo/add.png">产品范围：</td> 
<td><select id="selectTypeOne" class="easyui-combobox" data-options="required:true"> 
<option>一级分类</option> 
</select> <select id="selectTypeTwo" class="easyui-combobox" data-options="required:true"> 
<option selected="selected">全部</option> 
</select></td> 
</tr> 
<tr height="20px"> 
<td></td> 
<td id="typeThree"></td> 
</tr> 
<tr height="30px"> 
<td></td> 
<td><span id="typeOneResult"></span><span id="typeOneSubResult"></span> 
<hr /></td> 
</tr> 
</span>

$('#selectTypeOne').combobox({ 
url : config.urlMap.typeList, 
valueField : 'name', 
textField : 'name', 
required : true, 
width : '100', 
onSelect : function(row) { 
typeName1 = row.name 
$('#typeThree').html(""); 
$('#typeOneResult').html(""); 
$('#typeOneSubResult').html(""); 
subTypeName=[]; 
$('#selectTypeTwo').combobox({ 
url : config.urlMap.typeList + "?parent=" + row.id, 
valueField : 'name', 
textField : 'name', 
width : '100', 
required : true, 
onSelect : function(row) { 
typeName2 = typeName1 + ">" + row.name; 
$.getJSON(config.urlMap.typeList + "?parent=" + row.id, function(data) { 
var typeThreeName = "" 
for (var i = 0; i < data.length; i++) { 
typeThreeName += "<input onclick=clinkType(\"" + data[i].name + "\") name='typeThree' value=" + data[i].name + " type='checkbox'>" + data[i].name 
} 
$('#typeThree').html(typeThreeName); 
$('#typeOneResult').html(typeName2 + ">"); 
$('#typeOneSubResult').html(""); 
subTypeName=[]; 
}); 
} 
}) 

} 
}); 
}) 
//删除下标元素方式一 
Array.prototype.remove = function(dx) { 
if (isNaN(dx) || dx > this.length) { 
return false; 
} 
for (var i = 0, n = 0; i < this.length; i++) { 
if (this[i] != this[dx]) { 
this[n++] = this[i] 
} 
} 
this.length -= 1 
} 
//删除数组元素方式二 
Array.prototype.baoremove = function(dx) { 
if (isNaN(dx) || dx > this.length) { 
return false; 
} 
this.splice(dx, 1); 
} 
var subTypeName = []; 
function clinkType(name) { 
var index = subTypeName.indexOf(name) 
if (index == -1) { 
subTypeName.push(name); 
} else { 
subTypeName.baoremove(index); 
} 
$('#typeOneSubResult').html(subTypeName.join(",")); 
}